著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Levasseur, T. (Thierry) and Stafford, J. T.",Rings of differential operators on classical rings of invariants,,American Mathematical Society,1989,Memoirs of the American Mathematical Society,,0821824759,,https://cir.nii.ac.jp/crid/1130000793954807680